30020454 has 24 divisors (see below), whose sum is σ = 65184600. Its totient is φ = 9985248.

The previous prime is 30020413. The next prime is 30020467. The reversal of 30020454 is 45402003.

It is a happy number.

It is a super-2 number, since 2×30020454² = 1802455316732232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8322 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (2716025).

Almost surely, 2^30020454 is an apocalyptic number.

30020454 is an abundant number, since it is smaller than the sum of its proper divisors (35164146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30020454 is a wasteful number, since it uses less digits than its factorization.

30020454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30020454 is about 5479.0924430968. The cubic root of 30020454 is about 310.7938515900.

Adding to 30020454 its reverse (45402003), we get a palindrome (75422457).

The spelling of 30020454 in words is "thirty million, twenty thousand, four hundred fifty-four".